EP1316736A2 - Moyens d'étanchéité pour un palier à contact de roulement - Google Patents
Moyens d'étanchéité pour un palier à contact de roulement Download PDFInfo
- Publication number
- EP1316736A2 EP1316736A2 EP02025910A EP02025910A EP1316736A2 EP 1316736 A2 EP1316736 A2 EP 1316736A2 EP 02025910 A EP02025910 A EP 02025910A EP 02025910 A EP02025910 A EP 02025910A EP 1316736 A2 EP1316736 A2 EP 1316736A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- contact bearing
- rolling contact
- sealing
- inner race
- fact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/784—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race
- F16C33/7859—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a further sealing element
- F16C33/7863—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members mounted to a groove in the inner surface of the outer race and extending toward the inner race with a further sealing element mounted to the inner race, e.g. a flinger to use centrifugal effect
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/76—Sealings of ball or roller bearings
- F16C33/78—Sealings of ball or roller bearings with a diaphragm, disc, or ring, with or without resilient members
- F16C33/7816—Details of the sealing or parts thereof, e.g. geometry, material
- F16C33/783—Details of the sealing or parts thereof, e.g. geometry, material of the mounting region
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/04—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly
- F16C19/06—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for radial load mainly with a single row or balls
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/583—Details of specific parts of races
- F16C33/586—Details of specific parts of races outside the space between the races, e.g. end faces or bore of inner ring
Definitions
- the present invention refers to a contact rolling bearing.
- rolling contact bearings of a well-known type comprise an outer race, an inner race which is co-axial to the outer race, a series of rolling bodies which are arranged between the two races, and two sealing coverings which are arranged on either side of the rolling bodies and between the two races in order to prevent any impurities or suchlike from entering inside the rolling contact bearing itself.
- the type of rolling contact bearing described above is mounted together with at least one extra shield, which is defined by a race which is arranged laterally to a covering of the rolling contact bearing, and which is suitable for increasing the sealing characteristics of the rolling contact bearings themselves.
- this extra shield is independent of the rolling contact bearing and is subsequently blocked onto the rolling contact bearing itself during the assembly phase, but the fact of its presence is the source of several disadvantages, for example, a prolongation of the assembly time, and an increase in management and production costs, above all in the case that the rolling contact bearing and the extra shield come from two different suppliers.
- the aim of the present invention is to produce a rolling contact bearing which is free of the above-described disadvantages.
- a rolling contact bearing comprising an outer race, an inner race which is co-axial to the outer race, a series of rolling bodies and which are arranged between the two races, and at least one sealing covering which is laterally arranged to the rolling bodies and between the two races;
- the rolling contact bearing is characterised by the fact that it also comprises at least one extra shield which is integral to the inner race and which is laterally arranged to the said sealing covering in order to increase the sealing capacity of the sealing covering itself.
- the number 1 indicates a rolling contact bearing in its entirety, presenting a rotation axis A and comprising an outer race 2, an inner race 3 which is co-axial to the outer race 2, a series of rolling bodies which are arranged between the two races 2 and 3, and two sealing coverings 5 which are arranged between the two races 2 and 3 themselves and which are arranged laterally to the rolling bodies 4 and transversally to the axis A.
- both the outer race 2 and the inner race 3 each present a respective sliding track 6 for the rolling bodies 4 themselves, and also present two respective annular notches 8, which are arranged on opposite sides of the relative track 6 and which are suitable for housing a respective edge 9 of the relative sealing covering 5.
- the inner race 3 also presents, on the part which is opposite the relative track 6, two grooved housings 10 which are obtained in the place of inner corners of the inner race 3 itself, and which present a radial width which increases axially starting from the outside.
- each housing 10 presents an external rounded annular sharp edge 12 which has an internal diameter which is less than an internal diameter of the cylindrical surface 11 itself. Furthermore, each housing 10 is radially delimited towards the outside by a surface 13 in the form of a tapering cone which is connected to the relative sharp edge 12, and which is axially delimited towards the inside by a flat surface 14 which is transverse to the axis A and which is, in turn, connected to the relative surface 13.
- the rolling contact bearing 1 also comprises, for each sealing covering 5, an extra protection shield 15, which is arranged laterally to the relative sealing covering 5 in order to increase the sealing capacity of the covering 5 itself, and which is integral to the inner race 3.
- each shield 15 comprises an assembly portion 16 which is arranged inside the housing 10, and a covering portion 17, which extends radially beyond the track 6 from the inner race 3 and which is arranged laterally to the relative covering 5.
- the portion 17 is defined by an annular plate, which is arranged transversally to the axis A and which is radially superimposed over the relative sealing covering 5 for at least half of the radial height of the covering 5 itself.
- the assembly portion 16 on the other hand, can be directly caulked inside the housing 10, or as an alternative, as illustrated, it may present a conformation which is substantially similar to that of the housing 10 n order to be snap inserted inside the housing 10 itself.
- the assembly portion 16 is provided with a number of weakening notches 18, which are arranged at an equal distance one from the other, and which are obtained starting from a free edge 19 of the assembly portion 16 itself, and which define a number of other grooved tongues.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Of Bearings (AREA)
- Rolling Contact Bearings (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2001TO001122A ITTO20011122A1 (it) | 2001-11-30 | 2001-11-30 | Cuscinetto a rotolamento. |
ITTO20011122 | 2001-11-30 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1316736A2 true EP1316736A2 (fr) | 2003-06-04 |
EP1316736A3 EP1316736A3 (fr) | 2004-04-28 |
EP1316736B1 EP1316736B1 (fr) | 2007-04-25 |
Family
ID=11459317
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02025910A Expired - Lifetime EP1316736B1 (fr) | 2001-11-30 | 2002-11-20 | Moyens d'étanchéité pour un palier à contact de roulement |
Country Status (5)
Country | Link |
---|---|
US (1) | US20030103700A1 (fr) |
EP (1) | EP1316736B1 (fr) |
AT (1) | ATE360763T1 (fr) |
DE (1) | DE60219748T2 (fr) |
IT (1) | ITTO20011122A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011121385A1 (fr) | 2010-04-02 | 2011-10-06 | Aktiebolaget Skf | Roulement comprenant un joint d'étanchéité et un cache annulaire |
CN106122284A (zh) * | 2015-05-04 | 2016-11-16 | 斯凯孚公司 | 包括密封凸缘的轴承 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080166075A1 (en) * | 2007-01-04 | 2008-07-10 | Chiung-Ling Chang | Dust proof assembly of a five communicated tube |
CN104912942A (zh) * | 2010-04-02 | 2015-09-16 | Skf公司 | 具有密封垫片和环形护罩的滚动轴承 |
WO2014060043A1 (fr) * | 2012-10-19 | 2014-04-24 | Aktiebolaget Skf | Palier à roulement doté d'un sous-ensemble d'étanchéité |
FR3029994B1 (fr) * | 2014-12-15 | 2017-06-09 | Skf Ab | Palier a roulement comprenant un flasque d'etancheite |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1302614A (en) * | 1918-04-09 | 1919-05-06 | Zeus Ab | Dust-shield for bearings. |
US1985693A (en) * | 1934-04-27 | 1934-12-25 | Thomas L Robinson | Roller bearing |
US2114954A (en) * | 1936-01-10 | 1938-04-19 | S K F Ind Inc | Sealed bearing |
US2221553A (en) * | 1936-12-21 | 1940-11-12 | Charles M Palmer | Wheel |
US3350148A (en) * | 1966-02-11 | 1967-10-31 | Gen Bearing Co | Ball bearing seal assembly |
FR1568654A (fr) * | 1967-06-16 | 1969-05-23 | ||
GB1243747A (en) * | 1969-02-12 | 1971-08-25 | Remo Prec Tools Ltd | Improvements in bearings |
US3597030A (en) * | 1969-04-22 | 1971-08-03 | Skf Svenska Kullagerfab Ab | Sealing device for rolling bearings |
US4033643A (en) * | 1976-06-25 | 1977-07-05 | Kendale Industries, Inc. | Ball bearing assembly with dust shield |
IT7823344V0 (it) * | 1977-12-21 | 1978-11-21 | Skf Kugellagerfabriken Gmbh | Dispositivo per la tenuta e il posizionamento o il fissaggio di un cuscinetto a rotolamento. |
EP0015738B1 (fr) * | 1979-03-09 | 1984-03-07 | Skf (U.K.) Limited | Aménagements de paliers pour rouleaux transporteurs munis de capuchons d'extrémité |
US4384387A (en) * | 1980-12-10 | 1983-05-24 | Jervis B. Webb Company | Conveyor trolley assembly with moisture-resistant bearing seal |
US5560715A (en) * | 1995-04-26 | 1996-10-01 | The Torrington Company | Rolling element bearing with shield |
JPH09196066A (ja) * | 1996-01-18 | 1997-07-29 | Nippon Seiko Kk | 転がり軸受用スリンガ |
JP3669123B2 (ja) * | 1997-08-15 | 2005-07-06 | 日本精工株式会社 | シールド板付転がり軸受 |
JPH11257360A (ja) * | 1998-01-07 | 1999-09-21 | Nippon Seiko Kk | シールリング付転がり軸受及び自動車用変速機 |
JPH11230179A (ja) * | 1998-02-19 | 1999-08-27 | Nippon Seiko Kk | 転がり軸受 |
US6164832A (en) * | 1998-05-18 | 2000-12-26 | E. I. Du Pont De Nemours And Company | Ball bearing assembly |
WO2001020184A1 (fr) * | 1999-09-10 | 2001-03-22 | Nsk Ltd. | Roulement a rouleaux etanche |
-
2001
- 2001-11-30 IT IT2001TO001122A patent/ITTO20011122A1/it unknown
-
2002
- 2002-11-20 EP EP02025910A patent/EP1316736B1/fr not_active Expired - Lifetime
- 2002-11-20 DE DE60219748T patent/DE60219748T2/de not_active Expired - Lifetime
- 2002-11-20 AT AT02025910T patent/ATE360763T1/de not_active IP Right Cessation
- 2002-11-22 US US10/302,540 patent/US20030103700A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
None |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011121385A1 (fr) | 2010-04-02 | 2011-10-06 | Aktiebolaget Skf | Roulement comprenant un joint d'étanchéité et un cache annulaire |
DE112010005439T5 (de) | 2010-04-02 | 2013-04-04 | Aktiebolaget Skf | Wälzlager umfassend eine Dichtung und ein ringförmiges Schutzschild |
US8864385B2 (en) | 2010-04-02 | 2014-10-21 | Aktiebolaget Skf | Rolling bearing comprising a sealing gasket and an annular shield |
CN106122284A (zh) * | 2015-05-04 | 2016-11-16 | 斯凯孚公司 | 包括密封凸缘的轴承 |
CN106122284B (zh) * | 2015-05-04 | 2020-02-07 | 斯凯孚公司 | 包括密封凸缘的轴承 |
Also Published As
Publication number | Publication date |
---|---|
EP1316736A3 (fr) | 2004-04-28 |
EP1316736B1 (fr) | 2007-04-25 |
DE60219748T2 (de) | 2008-01-17 |
ITTO20011122A1 (it) | 2003-05-30 |
US20030103700A1 (en) | 2003-06-05 |
ATE360763T1 (de) | 2007-05-15 |
DE60219748D1 (de) | 2007-06-06 |
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